Compressor

Patent metadata

Field	Value
Publication number	US-2020392959-A1
Application number	US-201816771565-A
Country	US
Kind code	A1
Filing date	Oct 29, 2018
Priority date	Dec 22, 2017
Publication date	Dec 17, 2020
Grant date	—

Abstract

A compressor includes a compression mechanism, a casing, and a temperature detector. The compression mechanism includes a rotation axis. The casing accommodates the compression mechanism. The casing includes a compression mechanism contact portion. The compression mechanism is in contact with an inner surface of the compression mechanism contact portion. The temperature detector is attached to an outer surface of the compression mechanism contact portion and is configured to sense temperature of the compression mechanism contact portion.

First claim

1 . A compressor comprising:
a compression mechanism having a rotation axis; a casing accommodating the compression mechanism; and a temperature detector, the casing including a compression mechanism contact portion, the compression mechanism being in contact with an inner surface of the compression mechanism contact portion, and the temperature detector being attached to an outer surface of the compression mechanism contact portion, and the temperature detector being configured to sense temperature of the compression mechanism contact portion.

2 . A compressor comprising:
a compression mechanism having a rotation axis; a casing accommodating the compression mechanism; and a temperature detector, the casing including a compression mechanism contact portion, the compression mechanism being in contact with an inner surface of the compression mechanism contact portion, the temperature detector being attached to an outer surface of the compression mechanism contact portion, and in a side view,
at least 50% of a length of the compression mechanism contact portion along the rotation axis being overlapped with the temperature detector in a side view, or
at least 50% of a length of the temperature detector along the rotation axis being overlapped with the compression mechanism contact portion.

3 . The compressor according to claim 2 , wherein in a side view,
at least 70% of the length of the compression mechanism contact portion along the rotation axis is overlapped with the temperature detector, or at least 70% of the length of the temperature detector along the rotation axis is overlapped with the compression mechanism contact portion.

4 . The compressor according to claim 3 , wherein in a side view,
at least 90% of the length of the compression mechanism contact portion along the rotation axis is overlapped with the temperature detector, or at least 90% of the length of the temperature detector along the rotation axis is overlapped with the compression mechanism contact portion.

5 . The compressor according to claim 2 , wherein
the compression mechanism includes a compression mechanism extension section, the compression mechanism extension section radially extends from a center to a peripheral edge of the compression mechanism, the casing includes a compression mechanism extension section contact portion, the compression mechanism extension section contact portion of the casing is in contact with the compression mechanism extension section, and the temperature detector is attached to the casing so as to cover the compression mechanism extension section contact portion in a side view.

6 . The compressor according to claim 5 , wherein
the compression mechanism includes
a cylinder,
a piston configured to revolve around the rotation axis, and
a head defining, along with the cylinder and the piston, a compression chamber,
the compression mechanism extension section contact portion of the casing is in contact with a contact member of the compression mechanism, and the contact member is the cylinder or the head.

7 . The compressor according to claim 6 , wherein
the contact member includes a continuous portion radially occupying from an outer edge of the compression chamber to the compression mechanism contact portion, and the continuous portion has no opening.

8 . The compressor according to claim 2 , wherein
the compression mechanism has a suction hole, a first imaginary half line starts from the rotation axis and passes a center of the suction hole in a planar view, a second imaginary half line starts from the rotation axis and passes the temperature detector in planar view, and the first imaginary half line and the second imaginary half line form an angle not less than 30 degrees and not more than 330 degrees.

9 . The compressor according to claim 2 , wherein
the temperature detector is a thermistor.

10 . The compressor according to claim 2 , wherein
the temperature detector is a thermostat.

11 . The compressor according to claim 1 , wherein
the compression mechanism includes a compression mechanism extension section, the compression mechanism extension section radially extends from a center to a peripheral edge of the compression mechanism, the casing includes a compression mechanism extension section contact portion, the compression mechanism extension section contact portion of the casing is in contact with the compression mechanism extension section, and the temperature detector is attached to the casing so as to cover the compression mechanism extension section contact portion in a side view.

12 . The compressor according to claim 11 , wherein
the compression mechanism includes
a cylinder,
a piston configured to revolve around the rotation axis, and
a head defining, along with the cylinder and the piston, a compression chamber,
the compression mechanism extension section contact portion of the casing is in contact with a contact member of the compression mechanism, and the contact member is the cylinder or the head.

13 . The compressor according to claim 12 , wherein
the contact member includes a continuous portion radially occupying from an outer edge of the compression chamber to the compression mechanism contact portion, and the continuous portion has no opening.

14 . The compressor according to claim 1 , wherein
the compression mechanism has a suction hole, a first imaginary half line starts from the rotation axis and passes a center of the suction hole in a planar view, a second imaginary half line starts from the rotation axis and passes the temperature detector in the planar view, and the first imaginary half line and the second imaginary half line form an angle not less than 30 degrees and not more than 330 degrees.

15 . The compressor according to claim 1 , wherein
the temperature detector is a thermistor.

16 . The compressor according to claim 1 , wherein
the temperature detector is a thermostat.

Assignees

• Daikin Ind Ltd

Inventors

• Honda Keita
• Adachi Makoto
• Fujii Yuusuke

Classifications

• F04C29/065

  Noise dampening volumes, e.g. muffler chambers · CPC title

• F04B39/00

  Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 · CPC title

• F04C29/00

  Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00 · CPC title

• F04C28/28 Primary

  Safety arrangements; Monitoring · CPC title

• F04C23/001

  of similar working principle · CPC title